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CoAP Messaging In Depth Eric J. Bruno CoAP is a protocol not unlike HTTP or REST communication where the messages generally fall into the category of GET, POST, PUT, and DELETE. CoAP is also more conversational by nature since it’s request/response driven, as opposed to the publish/subscribe nature of MQTT.

MQTT Programming in Depth Eric J. Bruno MQTT is an open message protocol for machine-to-machine (M2M) or Internet of Things (IoT) communications that enables the transfer of telemetry-style data (i.e. measurements collected in remote locations) in the form of messages from devices and sensors, along unreliable or constrained networks, to a server.

Mixing Java Modules with OSGi Eric J. Bruno As many developers have learned, code modularity is more than just defining Java packages. It’s about specifying precisely which code is imported, which is shared publicly, and which is to be kept hidden. Proper modules also define understandable contracts that give insight into how shared code will behave and interact.

Revisit Your Cloud Strategy Eric J. Bruno You’ve invested a lot of time and effort in your cloud strategy over the last few of years. Now's a good time to review it, locate any remaining holes, and determine how to shore them up.