src,fix: drop support for v0.2 and clean up contenttype

This commit removes support for the v0.2 specification. It also removes the
`contenttype` attribute from the `CloudEvent` object. While the HTTP protocol
binding specifies that in binary mode, the `datacontenttype` attribute should
map to the HTTP Content-Type header, that doesn't mean that the `CloudEvent`
object should have a `contenttype` property.

Fixes: #61
Fixes: #66

Signed-off-by: Lance Ball <[email protected]>

Author: lance

README.md

@@ -33,7 +33,7 @@ To see working examples, point to [examples](./examples).
 
 ## :newspaper: Newsletter :newspaper:
 
-> all the API developed before, for 0.1, 0.2 and 0.3, works as the same.
+> all the API developed before, for 0.1 and 0.3, works as the same.
 
 Checkout the new expressive additions.
 
@@ -91,21 +91,21 @@ These are the supported specifications by this version.
 
 | **Specifications**                    | v0.1 | v0.2 | v0.3 | **v1.0** |
 |---------------------------------------|------|------|------|----------|
-| CloudEvents                           | yes  | yes  | yes  |   yes    |
-| HTTP Transport Binding  - Structured  | yes  | yes  | yes  |   yes    |
-| HTTP Transport Binding  - Binary      | yes  | yes  | yes  |   yes    |
-| JSON Event Format                     | yes  | yes  | yes  |   yes    |
+| CloudEvents                           | no   | no   | yes  |   yes    |
+| HTTP Transport Binding  - Structured  | no   | no   | yes  |   yes    |
+| HTTP Transport Binding  - Binary      | no   | no   | yes  |   yes    |
+| JSON Event Format                     | no   | no   | yes  |   yes    |
 
 ### What we can do
 
 | **What**                            | v0.1   | v0.2 | v0.3 | **v1.0** |
 |-------------------------------------|--------|------|------|----------|
-| Create events                       | yes    | yes  | yes  |   yes    |
-| Emit Structured events over HTTP    | yes    | yes  | yes  |   yes    |
-| Emit Binary events over HTTP        | yes    | yes  | yes  |   yes    |
-| JSON Event Format                   | yes    | yes  | yes  |   yes    |
-| Receive Structured events over HTTP | **no** | yes  | yes  |   yes    |
-| Receive Binary events over HTTP     | **no** | yes  | yes  |   yes    |
+| Create events                       | no     | no   | yes  |   yes    |
+| Emit Structured events over HTTP    | no     | no   | yes  |   yes    |
+| Emit Binary events over HTTP        | no     | no   | yes  |   yes    |
+| JSON Event Format                   | no     | no   | yes  |   yes    |
+| Receive Structured events over HTTP | **no** | no   | yes  |   yes    |
+| Receive Binary events over HTTP     | **no** | no   | yes  |   yes    |
 
 ## How to use
 

examples/express-ex/README.md

@@ -161,61 +161,3 @@ __A Batch One__
 
 TODO
 
-## Spec v0.2
-
-### How To Post an Event
-
-__A Structured One__
-
-> Payload [example](../payload/v02/structured-event-0.json)
-
-```bash
-curl -X POST \
-     -d'@../payload/v02/structured-event-0.json' \
-     -H'Content-Type:application/cloudevents+json' \
-     http://localhost:3000/v02
-```
-
-__A Structured One with Extension__
-
-> Payload [example](../payload/v02/structured-event-1.json)
-
-```bash
-curl -X POST \
-     -d'@../payload/v02/structured-event-1.json' \
-     -H'Content-Type:application/cloudevents+json' \
-     http://localhost:3000/v02
-```
-
-__A Binary One__
-
-```bash
-curl -X POST \
-     -d'@../payload/data-0.json' \
-     -H'Content-Type:application/json' \
-     -H'ce-specversion:0.2' \
-     -H'ce-type:com.github.pull.create' \
-     -H'ce-source:https://github.com/cloudevents/spec/pull/123' \
-     -H'ce-id:45c83279-c8a1-4db6-a703-b3768db93887' \
-     -H'ce-time:2019-06-21T17:31:00Z' \
-     http://localhost:3000/v02
-```
-
-__A Binary One with Extension__
-
-```bash
-curl -X POST \
-     -d'@../payload/data-0.json' \
-     -H'Content-Type:application/json' \
-     -H'ce-specversion:0.2' \
-     -H'ce-type:com.github.pull.create' \
-     -H'ce-source:https://github.com/cloudevents/spec/pull/123' \
-     -H'ce-id:45c83279-c8a1-4db6-a703-b3768db93887' \
-     -H'ce-time:2019-06-21T17:31:00Z' \
-     -H'ce-my-extension:extension value' \
-     http://localhost:3000/v02
-```
-
-__A Batch One__
-
-TODO

examples/express-ex/index.js

@@ -6,9 +6,6 @@ const app = express();
 const v03 = require("cloudevents-sdk/v03");
 const unmarshaller03 = new v03.HTTPUnmarshaller();
 
-const v02 = require("cloudevents-sdk/v02");
-const unmarshaller02 = new v02.HTTPUnmarshaller();
-
 const v1 = require("cloudevents-sdk/v1");
 const structured1 = new v1.StructuredHTTPReceiver();
 const binary1 = new v1.BinaryHTTPReceiver();
@@ -88,27 +85,6 @@ app.post("/v03", function(req, res) {
     });
 });
 
-app.post("/v02", function(req, res) {
-  console.log(req.headers);
-  console.log(req.body);
-
-  unmarshaller02.unmarshall(req.body, req.headers)
-    .then((cloudevent) => {
-      // pretty print
-      console.log("Accepted event:");
-      console.log(JSON.stringify(cloudevent.format(), null, 2));
-
-      res.status(201)
-        .json(cloudevent.format());
-    })
-    .catch((err) => {
-      console.error(err);
-      res.status(415)
-        .header("Content-Type", "application/json")
-        .send(JSON.stringify(err));
-    });
-});
-
 app.listen(3000, function() {
   console.log("Example app listening on port 3000!");
 });

examples/payload/v02/structured-event-0.json

@@ -3,7 +3,6 @@ module.exports = {
   HEADERS: "headers",
   CHARSET_DEFAULT: "utf-8",
 
-  SPEC_V02: "0.2",
   SPEC_V03: "0.3",
   SPEC_V1: "1.0",
 
@@ -23,26 +22,6 @@ module.exports = {
   DEFAULT_CONTENT_TYPE: "application/json; charset=utf-8",
   DEFAULT_CE_CONTENT_TYPE: "application/cloudevents+json; charset=utf-8",
 
-  BINARY_HEADERS_02: {
-    TYPE: "ce-type",
-    SPEC_VERSION: "ce-specversion",
-    SOURCE: "ce-source",
-    ID: "ce-id",
-    TIME: "ce-time",
-    SCHEMA_URL: "ce-schemaurl",
-    EXTENSIONS_PREFIX: "ce-"
-  },
-  STRUCTURED_ATTRS_02: {
-    TYPE: "type",
-    SPEC_VERSION: "specversion",
-    SOURCE: "source",
-    ID: "id",
-    TIME: "time",
-    SCHEMA_URL: "schemaurl",
-    CONTENT_TYPE: "contenttype",
-    DATA: "data"
-  },
-
   BINARY_HEADERS_03: {
     TYPE: "ce-type",
     SPEC_VERSION: "ce-specversion",