lambda.ring — com.github.igrishaev/lambda 0.1.5

A namespace to mimic Ring functionality, namely:

• turn Lambda HTTP events into Ring maps and back;
• provide custom Ring middleware.

->ring clj

(->ring event)

Turn Lambda event into a Ring map.

accept-gzip? clj

(accept-gzip? request)

assoc-json-params clj

(assoc-json-params request json)

CONTENT-TYPE-JSON clj

encoded-gzip? clj

(encoded-gzip? request)

gzip-response clj

(gzip-response response)

Gzip-encode a Ring response in two steps:

• assoc a header;
• encode the body payload.

IBody clj protocol

->body clj

(->body this)

IGzip clj protocol

-gzip-encode clj

(-gzip-encode this)

json-request? clj

(json-request? request)

Check if the Ring request was of a JSON type.

process-headers clj

(process-headers headers)

Turn Lambda headers into a Ring headers map.

response-internal-error clj

response-json-malformed clj

ring-> clj

(ring-> response)

Turn a Ring response map into a Lambda HTTP response.

TYPE_ARR_BYTE clj

ungzip-request clj

(ungzip-request request)

Wrap the request's :body field with a class that decodes gzip payload on the fly.

wrap-gzip clj

(wrap-gzip handler)

Wrap a given handler with in/out gzip logic.

If a client sends a header Content-Encoding: gzip, then the :body of the request is wrapped into an instance of GzipInputStream.

If a client sends a header Accept-Encoding: gzip, then the :body of the response is encoded into a Gzipped byte array. In addition, the response gets a header Content-Encoding: gzip. Supported body types are: nil, String, native byte-array, ISeq(of String), and InputStream.

Gzip output encoding might be forced with a global configuration (see the lambda.config namespace).

wrap-json-body clj

(wrap-json-body handler)

(wrap-json-body handler opt)

A middleware that, if the request was JSON, replaces the :body field with the parsed JSON data. Takes an optional map of Jsam settings.

wrap-json-params clj

(wrap-json-params handler)

(wrap-json-params handler opt)

A middleware that, if the request was JSON, adds the :json-params field to the request, and also merged then with :params, if the data was a map. Takes an optional map of Jsam settings.

wrap-json-response clj

(wrap-json-response handler)

(wrap-json-response handler opt)

A middleware that, if the body of the response was a collection, transforms the body into a JSON string and adds a Content-Type header with JSON mime-type. Takes an optional map of Jsam settings.

wrap-ring-event clj

(wrap-ring-event handler)

A ring middleware that transforms an HTTP Lambda event into a Ring request, processes it with a Ring handler, and turns the result into a Lambda HTTP response.

wrap-ring-exception clj

(wrap-ring-exception handler)

A middleware what captures any Ring exceptions, logs them and returns a negative HTTP response.