REST Resource: projects.locations.httpRoutes

Resource: HttpRoute

HttpRoute is the resource defining how HTTP traffic should be routed by a Mesh or Gateway resource.

JSON representation 
{
  "name": string,
  "selfLink": string,
  "description": string,
  "createTime": string,
  "updateTime": string,
  "hostnames": [
    string
  ],
  "meshes": [
    string
  ],
  "gateways": [
    string
  ],
  "labels": {
    string: string,
    ...
  },
  "rules": [
    {
      object (RouteRule)
    }
  ]
}
Fields
name

string

Required. Name of the HttpRoute resource. It matches pattern projects/*/locations/global/httpRoutes/http_route_name>.
description

string

Optional. A free-text description of the resource. Max length 1024 characters.
createTime

string (Timestamp format)

Output only. The timestamp when the resource was created.

A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".
updateTime

string (Timestamp format)

Output only. The timestamp when the resource was updated.

A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".
hostnames[]

string

Required. Hostnames define a set of hosts that should match against the HTTP host header to select a HttpRoute to process the request. Hostname is the fully qualified domain name of a network host, as defined by RFC 1123 with the exception that: - IPs are not allowed. - A hostname may be prefixed with a wildcard label (*.). The wildcard label must appear by itself as the first label.

Hostname can be "precise" which is a domain name without the terminating dot of a network host (e.g. foo.example.com) or "wildcard", which is a domain name prefixed with a single wildcard label (e.g. *.example.com).

Note that as per RFC1035 and RFC1123, a label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character. No other punctuation is allowed.

The routes associated with a Mesh or Gateways must have unique hostnames. If you attempt to attach multiple routes with conflicting hostnames, the configuration will be rejected.

For example, while it is acceptable for routes for the hostnames *.foo.bar.com and *.bar.com to be associated with the same Mesh (or Gateways under the same scope), it is not possible to associate two routes both with *.bar.com or both with bar.com.
meshes[]

string

Optional. Meshes defines a list of meshes this HttpRoute is attached to, as one of the routing rules to route the requests served by the mesh.

Each mesh reference should match the pattern: projects/*/locations/global/meshes/<mesh_name>

The attached Mesh should be of a type SIDECAR
gateways[]

string

Optional. Gateways defines a list of gateways this HttpRoute is attached to, as one of the routing rules to route the requests served by the gateway.

Each gateway reference should match the pattern: projects/*/locations/global/gateways/<gateway_name>
labels

map (key: string, value: string)

Optional. Set of label tags associated with the HttpRoute resource.

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.
rules[]

object (RouteRule)

Required. Rules that define how traffic is routed and handled. Rules will be matched sequentially based on the RouteMatch specified for the rule.

RouteRule

Specifies how to match traffic and how to route traffic when traffic is matched.

JSON representation 
{
  "matches": [
    {
      object (RouteMatch)
    }
  ],
  "action": {
    object (RouteAction)
  }
}
Fields
matches[]

object (RouteMatch)

A list of matches define conditions used for matching the rule against incoming HTTP requests. Each match is independent, i.e. this rule will be matched if ANY one of the matches is satisfied.

If no matches field is specified, this rule will unconditionally match traffic.

If a default rule is desired to be configured, add a rule with no matches specified to the end of the rules list.
action

object (RouteAction)

The detailed rule defining how to route matched traffic.

RouteMatch

RouteMatch defines specifications used to match requests. If multiple match types are set, this RouteMatch will match if ALL type of matches are matched.

JSON representation 
{
  "ignoreCase": boolean,
  "headers": [
    {
      object (HeaderMatch)
    }
  ],
  "queryParameters": [
    {
      object (QueryParameterMatch)
    }
  ],

  // Union field PathMatch can be only one of the following:
  "fullPathMatch": string,
  "prefixMatch": string,
  "regexMatch": string
  // End of list of possible types for union field PathMatch.
}
Fields
ignoreCase

boolean

Specifies if prefixMatch and fullPathMatch matches are case sensitive. The default value is false.
headers[]

object (HeaderMatch)

Specifies a list of HTTP request headers to match against. ALL of the supplied headers must be matched.
queryParameters[]

object (QueryParameterMatch)

Specifies a list of query parameters to match against. ALL of the query parameters must be matched.

Union field PathMatch.

PathMatch can be only one of the following:
fullPathMatch

string

The HTTP request path value should exactly match this value.

Only one of fullPathMatch, prefixMatch, or regexMatch should be used.
prefixMatch

string

The HTTP request path value must begin with specified prefixMatch. prefixMatch must begin with a /.

Only one of fullPathMatch, prefixMatch, or regexMatch should be used.
regexMatch

string

The HTTP request path value must satisfy the regular expression specified by regexMatch after removing any query parameters and anchor supplied with the original URL. For regular expression grammar, please see https://github.com/google/re2/wiki/Syntax

Only one of fullPathMatch, prefixMatch, or regexMatch should be used.

HeaderMatch

Specifies how to select a route rule based on HTTP request headers.

JSON representation 
{
  "header": string,
  "invertMatch": boolean,

  // Union field MatchType can be only one of the following:
  "exactMatch": string,
  "regexMatch": string,
  "prefixMatch": string,
  "presentMatch": boolean,
  "suffixMatch": string,
  "rangeMatch": {
    object (IntegerRange)
  }
  // End of list of possible types for union field MatchType.
}
Fields
header

string

The name of the HTTP header to match against.
invertMatch

boolean

If specified, the match result will be inverted before checking. Default value is set to false.

Union field MatchType.

MatchType can be only one of the following:
exactMatch

string

The value of the header should match exactly the content of exactMatch.
regexMatch

string

The value of the header must match the regular expression specified in regexMatch. For regular expression grammar, please see: https://github.com/google/re2/wiki/Syntax
prefixMatch

string

The value of the header must start with the contents of prefixMatch.
presentMatch

boolean

A header with headerName must exist. The match takes place whether or not the header has a value.
suffixMatch

string

The value of the header must end with the contents of suffixMatch.
rangeMatch

object (IntegerRange)

If specified, the rule will match if the request header value is within the range.

IntegerRange

Represents an integer value range.

JSON representation 
{
  "start": integer,
  "end": integer
}
Fields
start

integer

Start of the range (inclusive)
end

integer

End of the range (exclusive)

QueryParameterMatch

Specifications to match a query parameter in the request.

JSON representation 
{
  "queryParameter": string,

  // Union field MatchType can be only one of the following:
  "exactMatch": string,
  "regexMatch": string,
  "presentMatch": boolean
  // End of list of possible types for union field MatchType.
}
Fields
queryParameter

string

The name of the query parameter to match.

Union field MatchType.

MatchType can be only one of the following:
exactMatch

string

The value of the query parameter must exactly match the contents of exactMatch.

Only one of exactMatch, regexMatch, or presentMatch must be set.
regexMatch

string

The value of the query parameter must match the regular expression specified by regexMatch. For regular expression grammar, please see https://github.com/google/re2/wiki/Syntax

Only one of exactMatch, regexMatch, or presentMatch must be set.
presentMatch

boolean

Specifies that the QueryParameterMatcher matches if request contains query parameter, irrespective of whether the parameter has a value or not.

Only one of exactMatch, regexMatch, or presentMatch must be set.

RouteAction

The specifications for routing traffic and applying associated policies.

JSON representation 
{
  "destinations": [
    {
      object (Destination)
    }
  ],
  "redirect": {
    object (Redirect)
  },
  "faultInjectionPolicy": {
    object (FaultInjectionPolicy)
  },
  "requestHeaderModifier": {
    object (HeaderModifier)
  },
  "responseHeaderModifier": {
    object (HeaderModifier)
  },
  "urlRewrite": {
    object (URLRewrite)
  },
  "timeout": string,
  "retryPolicy": {
    object (RetryPolicy)
  },
  "requestMirrorPolicy": {
    object (RequestMirrorPolicy)
  },
  "corsPolicy": {
    object (CorsPolicy)
  },
  "statefulSessionAffinity": {
    object (StatefulSessionAffinityPolicy)
  },
  "directResponse": {
    object (HttpDirectResponse)
  },
  "idleTimeout": string
}
Fields
destinations[]

object (Destination)

The destination to which traffic should be forwarded.
redirect

object (Redirect)

If set, the request is directed as configured by this field.
faultInjectionPolicy

object (FaultInjectionPolicy)

The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted for a percentage of requests.

timeout and retryPolicy will be ignored by clients that are configured with a faultInjectionPolicy
requestHeaderModifier

object (HeaderModifier)

The specification for modifying the headers of a matching request prior to delivery of the request to the destination. If HeaderModifiers are set on both the Destination and the RouteAction, they will be merged. Conflicts between the two will not be resolved on the configuration.
responseHeaderModifier

object (HeaderModifier)

The specification for modifying the headers of a response prior to sending the response back to the client. If HeaderModifiers are set on both the Destination and the RouteAction, they will be merged. Conflicts between the two will not be resolved on the configuration.
urlRewrite

object (URLRewrite)

The specification for rewrite URL before forwarding requests to the destination.
timeout

string (Duration format)

Specifies the timeout for selected route. Timeout is computed from the time the request has been fully processed (i.e. end of stream) up until the response has been completely processed. Timeout includes all retries.

A duration in seconds with up to nine fractional digits, ending with 's'. Example: "3.5s".
retryPolicy

object (RetryPolicy)

Specifies the retry policy associated with this route.
requestMirrorPolicy

object (RequestMirrorPolicy)

Specifies the policy on how requests intended for the routes destination are shadowed to a separate mirrored destination. Proxy will not wait for the shadow destination to respond before returning the response. Prior to sending traffic to the shadow service, the host/authority header is suffixed with -shadow.
corsPolicy

object (CorsPolicy)

The specification for allowing client side cross-origin requests.
statefulSessionAffinity

object (StatefulSessionAffinityPolicy)

Optional. Specifies cookie-based stateful session affinity.
directResponse

object (HttpDirectResponse)

Optional. Static HTTP Response object to be returned regardless of the request.
idleTimeout

string (Duration format)

Optional. Specifies the idle timeout for the selected route. The idle timeout is defined as the period in which there are no bytes sent or received on either the upstream or downstream connection. If not set, the default idle timeout is 1 hour. If set to 0s, the timeout will be disabled.

A duration in seconds with up to nine fractional digits, ending with 's'. Example: "3.5s".

Destination

Specifications of a destination to which the request should be routed to.

JSON representation 
{
  "serviceName": string,
  "weight": integer,
  "requestHeaderModifier": {
    object (HeaderModifier)
  },
  "responseHeaderModifier": {
    object (HeaderModifier)
  }
}
Fields
serviceName

string

The URL of a BackendService to route traffic to.
weight

integer

Specifies the proportion of requests forwarded to the backend referenced by the serviceName field. This is computed as: - weight/Sum(weights in this destination list). For non-zero values, there may be some epsilon from the exact proportion defined here depending on the precision an implementation supports.

If only one serviceName is specified and it has a weight greater than 0, 100% of the traffic is forwarded to that backend.

If weights are specified for any one service name, they need to be specified for all of them.

If weights are unspecified for all services, then, traffic is distributed in equal proportions to all of them.
requestHeaderModifier

object (HeaderModifier)

Optional. The specification for modifying the headers of a matching request prior to delivery of the request to the destination. If HeaderModifiers are set on both the Destination and the RouteAction, they will be merged. Conflicts between the two will not be resolved on the configuration.
responseHeaderModifier

object (HeaderModifier)

Optional. The specification for modifying the headers of a response prior to sending the response back to the client. If HeaderModifiers are set on both the Destination and the RouteAction, they will be merged. Conflicts between the two will not be resolved on the configuration.

HeaderModifier

The specification for modifying HTTP header in HTTP request and HTTP response.

JSON representation 
{
  "set": {
    string: string,
    ...
  },
  "add": {
    string: string,
    ...
  },
  "remove": [
    string
  ]
}
Fields
set

map (key: string, value: string)

Completely overwrite/replace the headers with given map where key is the name of the header, value is the value of the header.

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.
add

map (key: string, value: string)

Add the headers with given map where key is the name of the header, value is the value of the header.

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.
remove[]

string

Remove headers (matching by header names) specified in the list.

Redirect

The specification for redirecting traffic.

JSON representation 
{
  "hostRedirect": string,
  "pathRedirect": string,
  "prefixRewrite": string,
  "responseCode": enum (ResponseCode),
  "httpsRedirect": boolean,
  "stripQuery": boolean,
  "portRedirect": integer
}
Fields
hostRedirect

string

The host that will be used in the redirect response instead of the one that was supplied in the request.
pathRedirect

string

The path that will be used in the redirect response instead of the one that was supplied in the request. pathRedirect can not be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request will be used for the redirect.
prefixRewrite

string

Indicates that during redirection, the matched prefix (or path) should be swapped with this value. This option allows URLs be dynamically created based on the request.
responseCode

enum (ResponseCode)

The HTTP Status code to use for the redirect.
httpsRedirect

boolean

If set to true, the URL scheme in the redirected request is set to https. If set to false, the URL scheme of the redirected request will remain the same as that of the request.

The default is set to false.
stripQuery

boolean

if set to true, any accompanying query portion of the original URL is removed prior to redirecting the request. If set to false, the query portion of the original URL is retained.

The default is set to false.
portRedirect

integer

The port that will be used in the redirected request instead of the one that was supplied in the request.

ResponseCode

Supported HTTP response code.

Enums
RESPONSE_CODE_UNSPECIFIED Default value
MOVED_PERMANENTLY_DEFAULT Corresponds to 301.
FOUND Corresponds to 302.
SEE_OTHER Corresponds to 303.
TEMPORARY_REDIRECT Corresponds to 307. In this case, the request method will be retained.
PERMANENT_REDIRECT Corresponds to 308. In this case, the request method will be retained.

FaultInjectionPolicy

The specification for fault injection introduced into traffic to test the resiliency of clients to destination service failure. As part of fault injection, when clients send requests to a destination, delays can be introduced by client proxy on a percentage of requests before sending those requests to the destination service. Similarly requests can be aborted by client proxy for a percentage of requests.

JSON representation 
{
  "delay": {
    object (Delay)
  },
  "abort": {
    object (Abort)
  }
}
Fields
delay

object (Delay)

The specification for injecting delay to client requests.
abort

object (Abort)

The specification for aborting to client requests.

Delay

Specification of how client requests are delayed as part of fault injection before being sent to a destination.

JSON representation 
{
  "fixedDelay": string,
  "percentage": integer
}
Fields
fixedDelay

string (Duration format)

Specify a fixed delay before forwarding the request.

A duration in seconds with up to nine fractional digits, ending with 's'. Example: "3.5s".
percentage

integer

The percentage of traffic on which delay will be injected.

The value must be between [0, 100]

Abort

Specification of how client requests are aborted as part of fault injection before being sent to a destination.

JSON representation 
{
  "httpStatus": integer,
  "percentage": integer
}
Fields
httpStatus

integer

The HTTP status code used to abort the request.

The value must be between 200 and 599 inclusive.
percentage

integer

The percentage of traffic which will be aborted.

The value must be between [0, 100]

URLRewrite

The specification for modifying the URL of the request, prior to forwarding the request to the destination.

JSON representation 
{
  "pathPrefixRewrite": string,
  "hostRewrite": string
}
Fields
pathPrefixRewrite

string

Prior to forwarding the request to the selected destination, the matching portion of the requests path is replaced by this value.
hostRewrite

string

Prior to forwarding the request to the selected destination, the requests host header is replaced by this value.

RetryPolicy

The specifications for retries.

JSON representation 
{
  "retryConditions": [
    string
  ],
  "numRetries": integer,
  "perTryTimeout": string
}
Fields
retryConditions[]

string

Specifies one or more conditions when this retry policy applies. Valid values are: 5xx: Proxy will attempt a retry if the destination service responds with any 5xx response code, of if the destination service does not respond at all, example: disconnect, reset, read timeout, connection failure and refused streams.

gateway-error: Similar to 5xx, but only applies to response codes 502, 503, 504.

reset: Proxy will attempt a retry if the destination service does not respond at all (disconnect/reset/read timeout)

connect-failure: Proxy will retry on failures connecting to destination for example due to connection timeouts.

retriable-4xx: Proxy will retry fro retriable 4xx response codes. Currently the only retriable error supported is 409.

refused-stream: Proxy will retry if the destination resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry.
numRetries

integer

Specifies the allowed number of retries. This number must be > 0. If not specified, default to 1.
perTryTimeout

string (Duration format)

Specifies a non-zero timeout per retry attempt.

A duration in seconds with up to nine fractional digits, ending with 's'. Example: "3.5s".

RequestMirrorPolicy

Specifies the policy on how requests are shadowed to a separate mirrored destination service. The proxy does not wait for responses from the shadow service. Prior to sending traffic to the shadow service, the host/authority header is suffixed with -shadow.

JSON representation 
{
  "destination": {
    object (Destination)
  },
  "mirrorPercent": number
}
Fields
destination

object (Destination)

The destination the requests will be mirrored to. The weight of the destination will be ignored.
mirrorPercent

number

Optional. The percentage of requests to get mirrored to the desired destination.

CorsPolicy

The Specification for allowing client side cross-origin requests.

JSON representation 
{
  "allowOrigins": [
    string
  ],
  "allowOriginRegexes": [
    string
  ],
  "allowMethods": [
    string
  ],
  "allowHeaders": [
    string
  ],
  "exposeHeaders": [
    string
  ],
  "maxAge": string,
  "allowCredentials": boolean,
  "disabled": boolean
}
Fields
allowOrigins[]

string

Specifies the list of origins that will be allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
allowOriginRegexes[]

string

Specifies the regular expression patterns that match allowed origins. For regular expression grammar, please see https://github.com/google/re2/wiki/Syntax.
allowMethods[]

string

Specifies the content for Access-Control-Allow-Methods header.
allowHeaders[]

string

Specifies the content for Access-Control-Allow-Headers header.
exposeHeaders[]

string

Specifies the content for Access-Control-Expose-Headers header.
maxAge

string

Specifies how long result of a preflight request can be cached in seconds. This translates to the Access-Control-Max-Age header.
allowCredentials

boolean

In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This translates to the Access-Control-Allow-Credentials header.

Default value is false.
disabled

boolean

If true, the CORS policy is disabled. The default value is false, which indicates that the CORS policy is in effect.

StatefulSessionAffinityPolicy

The specification for cookie-based stateful session affinity where the date plane supplies a “session cookie” with the name "GSSA" which encodes a specific destination host and each request containing that cookie will be directed to that host as long as the destination host remains up and healthy.

The gRPC proxyless mesh library or sidecar proxy will manage the session cookie but the client application code is responsible for copying the cookie from each RPC in the session to the next.

JSON representation 
{
  "cookieTtl": string
}
Fields
cookieTtl

string (Duration format)

Required. The cookie TTL value for the Set-Cookie header generated by the data plane. The lifetime of the cookie may be set to a value from 1 to 86400 seconds (24 hours) inclusive.

A duration in seconds with up to nine fractional digits, ending with 's'. Example: "3.5s".

HttpDirectResponse

Static HTTP response object to be returned.

JSON representation 
{
  "status": integer,

  // Union field HttpBody can be only one of the following:
  "stringBody": string,
  "bytesBody": string
  // End of list of possible types for union field HttpBody.
}
Fields
status

integer

Required. Status to return as part of HTTP Response. Must be a positive integer.
Union field HttpBody. Body to return as part of HTTP Response. HttpBody can be only one of the following:
stringBody

string

Optional. Response body as a string. Maximum body length is 1024 characters.
bytesBody

string (bytes format)

Optional. Response body as bytes. Maximum body size is 4096B.

A base64-encoded string.

Methods

create

 Creates a new HttpRoute in a given project and location.

delete

 Deletes a single HttpRoute.

get

 Gets details of a single HttpRoute.

list

 Lists HttpRoute in a given project and location.

patch

 Updates the parameters of a single HttpRoute.